حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا سُفْيَانُ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ نَاجِيَةَ الأَسْلَمِيِّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم بَعَثَ مَعَهُ بِهَدْىٍ فَقَالَ ‏"‏ إِنْ عَطِبَ مِنْهَا شَىْءٌ فَانْحَرْهُ ثُمَّ اصْبَغْ نَعْلَهُ فِي دَمِهِ ثُمَّ خَلِّ بَيْنَهُ وَبَيْنَ النَّاسِ ‏"‏ ‏.‏

Narrated Najiyah al-Aslami: The Messenger of Allah (PBUH) sent sacrificial camels with him (as offering to the Ka'bah). He then said: If any one of them becomes fatigued, slaughter it, dip its shoes in its blood, and leave it for the people (to eat). Translation Not Available

Book Ref: Sunan Abi Dawud Book 11 Hadith 1762
Web Ref:  Sunan Abi Dawud Book 10 Hadith 1758